Auto-start low frequency laminated transformers
- Technology
- Low frequency laminated transformers
- Partner
- Noratel
Auto-start transformer construction is considerably lighter and smaller than similar isolating transformers. Typical applications are speed control of ventilation fans, the soft start of larger three-phase motors, and easy transforming of voltage up and down.
Autotransformers are not able to eliminate earth faults, all earth fault problems will be propagated through the transformer, resulting in considerable risk to safety.
Range features
A high level overview of what this range offers
- Input voltage: 0 – 400VDC/ 440 – max. 1000VAC
- Frequency: 47 – 63Hz
- Output voltage: 0 – 400VDC/ 242- max. 1000VAC
- According to: EN61558-2-13, IEC60076, IEC6092
- Test/insulating voltage: 2 – 3kV AC RMS
- Construction class: I/ II
- Insulation class: B (130°C)/ F (155°C) standard at three-phase systems/ H (180°C)
- Ambient temperature (t a): 40 – 45°C
- Degree of protection: IP00/ IP20/ IP44
What’s in this range?
All the variants in the range and a comparison of what they offer
| Category | Dimensions (mm) | Weight (kg) | Phases | Power | Voltages (Vac) |
|---|---|---|---|---|---|
Open IP00 | 46 x 60 x 75 – 180 x 210 x 312 | 0.6 – 41.4 | Mono | 50 – 2400 VA | 0 – 110 – 127 – 225 – 235 – 240 |
Encapsulated IP20 | 66 x 93 x 59 – 162 x 235 x 140 | 1.2 – 15.1 | Mono | 70 – 1720 VA | 115 – 230 |
Encapsulated IP44 | 92 x 130 x 87 – 162 x 235 x 140 | 1.3 – 15 | Mono | 150 – 2000 VA | 0 – 110 – 127 – 225 – 235 – 400 |
Type 3LT – 00/ASFM | 400 x 243 x 400 – 520 x 330 x 525 | 72 – 185 | Tri-phase | 125 – 500 KW | 440 – 242 |
